Finding the Fourth Proportional to 339,225.78, 511,276.97 and 292,405.95
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Solution
The fourth proportional to 339,225.78, 511,276.97 and 292,405.95 is: 440,710.70
Step by Step Solution
- Step 1: Write the proportion equation
339,225.78 : 511,276.97 = 292,405.95 : x - Step 2: Convert to fraction form
339,225.78/511,276.97 = 292,405.95/x - Step 3: Cross multiply
339,225.78x = 511,276.97 × 292,405.95 - Step 4: Simplify right side
339,225.78x = 149,500,428,946.74 - Step 5: Solve for x
x = 149,500,428,946.74/339,225.78 - Step 6: Final answer
x = 440,710.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.